SX20AC Datasheet (Parallax) - Configurable Communications Controllers

SX20AC, Configurable Communications Controllers

6 Typical Connection Diagrams 7 Port Descriptions 9 Reading and Writing the Ports 9 Read-Modify-Write Considerations11 Port Configuration 11 MODE Register 11 Port Configuration Registers 11 Port Configuration Upon Reset12 Special-Function Registers 13 PC Register (02h) 13 STATUS Register (03h) 13

SX20AC/SX28AC Configurable Communications Controllers with EE/Flash Program Memory, In-System Programming Capability and On-Chip Debug 1.0 PRODUCT OVERVIEW 1.1.

Introduction The Parallax SX family of configurable communications controllers is fabricated in an advanced CMOS process technology.

The advanced process, combined with a RISC-like architecture, allows high-speed computation, flexible I/O control, and efficient data manipulation.

Throughput is enhanced by operating the device at frequen

SX20AC Features

* enable the SX to be used as a general-purpose, high-speed microcontroller in a variety of applications. Figure 1-1: Block Diagram Parallax and the Parallax logo are trademarks of Parallax, Inc. SX is a trademark of Ubicom Inc, used with permission. I2C is a trademark of Philips Corporation. All o